Beer keg



FIG. 1 is a perspective view from above and from one side of the beer keg of the present invention;

FIG. 2 is a perspective view from below and from the other side of the beer keg of the present invention, as shown in FIG. 1;

FIG. 3 is a plan view of an end of the beer keg of the present invention, the opposite end view corresponding thereto; and,

FIG. 4 is a side elevation view of the beer keg of the present invention, the opposite side elevation corresponding thereto. 

The ornamental design for a beer keg, as shown and described. 